fatal error: sync: unlock of unlocked mutex

goroutine 4399 [running]:
runtime.throw(0x1450ee5, 0x1e)
	GOROOT/src/runtime/panic.go:1117 +0x72 fp=0xc0008b2728 sp=0xc0008b26f8 pc=0x438072
sync.throw(0x1450ee5, 0x1e)
	GOROOT/src/runtime/panic.go:1103 +0x35 fp=0xc0008b2748 sp=0xc0008b2728 pc=0x46cdb5
sync.(*Mutex).unlockSlow(0xc0036155c8, 0xc0ffffffff)
	GOROOT/src/sync/mutex.go:196 +0xd8 fp=0xc0008b2770 sp=0xc0008b2748 pc=0x47c978
sync.(*Mutex).Unlock(...)
	GOROOT/src/sync/mutex.go:190
gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*DeviceFD).Read(0xc000845100, 0x1607478, 0xc003474a80, 0x1601980, 0xc003718000, 0x0, 0x1, 0x20003040, 0x2000, 0x100, ...)
	pkg/sentry/fsimpl/fuse/dev.go:171 +0x2e8 fp=0xc0008b2848 sp=0xc0008b2770 pc=0x1037b28
gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Read(0xc000845100, 0x1607478, 0xc003474a80, 0x1601980, 0xc003718000, 0x0, 0x1, 0x20003040, 0x2000, 0x100, ...)
	pkg/sentry/vfs/file_description.go:705 +0xf5 fp=0xc0008b28f8 sp=0xc0008b2848 pc=0x7887d5
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.read(0xc003474a80, 0xc000845100, 0x1601980, 0xc003718000, 0x0, 0x1, 0x20003040, 0x2000, 0x100, 0x0, ...)
	pkg/sentry/syscalls/linux/vfs2/read_write.go:108 +0xa5 fp=0xc0008b2a88 sp=0xc0008b28f8 pc=0xf6d945
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Read(0xc003474a80, 0x3, 0x20003040, 0x2000, 0x7f78c15e89d0, 0x0, 0x7f78c15e8700, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/vfs2/read_write.go:71 +0x293 fp=0xc0008b2bb8 sp=0xc0008b2a88 pc=0xf6d153
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc003474a80, 0x0, 0x3, 0x20003040, 0x2000, 0x7f78c15e89d0, 0x0, 0x7f78c15e8700, 0x0, 0x14300e0, ...)
	pkg/sentry/kernel/task_syscall.go:115 +0x199 fp=0xc0008b2c78 sp=0xc0008b2bb8 pc=0xa84579
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc003474a80, 0x0, 0x3, 0x20003040, 0x2000, 0x7f78c15e89d0, 0x0, 0x7f78c15e8700, 0x0, 0x7f78c15e8700)
	pkg/sentry/kernel/task_syscall.go:290 +0x70 fp=0xc0008b2d00 sp=0xc0008b2c78 pc=0xa85850
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc003474a80, 0x0, 0x3, 0x20003040, 0x2000, 0x7f78c15e89d0, 0x0, 0x7f78c15e8700, 0xc0029cdd40, 0x1618688)
	pkg/sentry/kernel/task_syscall.go:237 +0xb4 fp=0xc0008b2d60 sp=0xc0008b2d00 pc=0xa85334
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc003474a80, 0x2, 0xc003474a80)
	pkg/sentry/kernel/task_syscall.go:204 +0x198 fp=0xc0008b2e30 sp=0xc0008b2d60 pc=0xa84c18
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc003474a80, 0x15d9a80, 0x0)
	pkg/sentry/kernel/task_run.go:294 +0xd9a fp=0xc0008b2f68 sp=0xc0008b2e30 pc=0xa77b3a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc003474a80, 0x2e5)
	pkg/sentry/kernel/task_run.go:98 +0x1b9 fp=0xc0008b2fd0 sp=0xc0008b2f68 pc=0xa768f9
runtime.goexit()
	src/runtime/asm_amd64.s:1371 +0x1 fp=0xc0008b2fd8 sp=0xc0008b2fd0 pc=0x472861
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:398 +0x116